Rim wrench for wheels



Aug. 5, 1930.' E. A. NELSON RIM WRENCH FOR WHEELS l'original Filed Marchl 2e. 192s 2 sheets-sheet 1 jwm+w ATTORNEY Aug. 5, 1930. E. A. NELSON 1,772,192

- RIM WRENCH FOR WHEELS Original Filed Mrch 26. 192B 2 Sheets-Sheet 2 INVENTOR Emi] x7. /Ve so/2.

BY AzT'RNEY Patentedsug. 5, 1939 Y Y 7 UNrrEn- STATES Parser essaies RIlVI WRENCH FOR V'VVI-ZCEIFJLS Original application filed March 26, 1.928, Serial No. 264,748. Patent No. 1,744,915, dated January 28,

' 1930. Divided and this application filed January 15, 1930. Serial No. 420,828.

This invention relates lto wrenches, and tending Vspokes 11, each of which terminates particularly to wrenches constructed for use at its outer end in a pad 12. The end surin connection with rims removably received face of each pad 12 is formed to provide two upon wheels, and is a 'division ofv my appliaxially spaced rim receiving seats 13 (see Fig.

cation for Letters Patent of the United 2), Whose surfaces are formed as a part of a 55 States led March 26, 1928, Serial Number. cylindrical surface having its axis coincident i 264,748, Patent Number 1,7 44,915, January with the axis of the hubvlO. lThe correspond- 28, 1930, for improvements in wheels. ing seats 13 on each side of the wheel serve The principal object of the present inven as seats for a rim 14, and the rims 14 are setion is to provide a wrench of novel concured to the seats in opposed relationship, as 60 struction for use in applying and removing indicated in Fig. 2. Each rim has an ina rim from a wheel. wardly projecting marginal thickened por- Another object is to provide a Wrench for tion 15, the inner surface of which is formed use in connection with a rim engageable with to cylindrical shape and is adapted to be re- 15 a wheel circumferentially thereof, the wrench ceived upon the correspondingrim seats 13. 65 being so constructed as to enable it to-cooperrIwo bolts 16 positioned in generally radial ate between the wheel and the rim in order relation with respect to the wheel extend to force the rim on to or from the wheel. through openings 22 in each pad 12 in line Another object is to provide, in combinawith each lof the seats 13 and are threaded tion with a felloeless type of wheel provided into lopenings23 in the thickened portion 15 70 with a rim secured to the ends of the spokes ofthe corresponding rim 14 in order to secure by radially extending bolts, a wrench prothe rimto the wheel. Each rim may be provided with means for engaging the wheel in vided with ay removable flange ring 17 as in an opening provided for the radial bolts upon conventional practice.

25 removal of the bolts, and further formed to The outer surface of each pad 12 is prefer-A 75 engage means integral with the rim whereably provided with a slot 18 extending in by to enable the wrench to co-operate beparallel relation to the axis of the wheel, and tween the wheel and rim to force the rim on the rim 14 is provided with an inwardly proor oii' of the wheel. jecting headed pin 19 which is adapted to be Other objects will be apparent in the folreceived in the slot 18 so as to properly locate S0 lowing specification, reference being had to the holes in the rim with the holes in the the accompanying drawings, in which pads in order to facilitate the application of Fig. 1 is a side elevation of a wheel. the bolts 16 to the wheel. Fig. 2 is a fragmentary sectional view taken It is preferable that the inside diameter of as on the line 2*-2 of Fig. 1. the thickened portion 15, which is received 85 Fig. 3is a perspective view of awrench emupon the seats 13, be slightly smaller than ploye'din applying or removing the rim to or the effective external diameter of the seats from the wheel. 13 so that in applying the rim to the wheel Fig. 4 'is a fragmentary sectional view the rim must-be pressed upon the seats 13.

taken as on the line 4--4 of Fig. 2 but show- For this reason it is desirable that some 90 ing the 4'fastening ybolts removed and the means be provided permitting ready appliwrench shown in Fig. 3 'positioned in opercation of the rim to the wheel and ready're'- n ative relationship with respect to the rim and moval of the same therefrom whenV desired. wheel. In this respect it is desired topoint out that Fig. 5 is a fragmentary perspective view even though the internal diameter of thev showing the application of the wrench to the thickened portions 15 of the rims were of rim and wheel for the purpose of applying or slightly larger diameter than the eifective removing the rim. diameter of the rim seats, unless the rim was I show in Fig. 1 a wheel comprising a hub maintained in absolutely true' circularform portion 10 having four integral radial exit Would still be necessary to force the rim on 100 and off of the wheel, in which case it is equally desirable that some means be provided to facilitate such application and removal of the rim.

The kmeans provided in accordance with the present invention consists of a wrench of novel formationthat isY adapted to cooperate with the openings 22 in the pad 12 upon removal of the bolts 16. For the purpose of employing this'wrench, I secure toV the rim 14 at points adjacent diametrically opposite pads 12 a stud member 2O extending inwardly of the rim and terminating in a ball head 21. The wrench comprises a bar member havinga shank portion 25 terminating at one end in a relatively flat head 26, one side of which is provided with a slot 27 extending perpendicularly to the length of the shank 25. On the side opposite the slot 27 I provide oppositely extending pins 28 which are shown as being substantially in line with the slot 27 and disposed in perpendicular relationship with respect to the top and bottom f surfaces of the head 26. The pins 28 are of va diameter to relatively closely but rotatably fit in the` openings 22 in the pads 12 upon removal of the corresponding bolts 16, and when inV such position the wrench may be positioned so that the adjacent ball member 21 is received within the slot 27 in the'wrench. It will thus be apparent that the wrench is thus pivotally mounted relative to the corresponding pad 12 and that upon rotation of the wrench about the pins 28 the slotted part of the wrench in rotating and simultaneously engaging the ball member 21 will force the rim either on or od of the corresponding pad 12, depending upon the direction of rotation of the wrench. It will also be apparent that by providing the pins 28 projecting from both sides of the wrench, the wrench may be reversed when necessary without affecting its operativeness. The leverage which it is possible to obtain in a Wrench of this type is very great and Vpermits rims to` be easily and quickly applied to or removed from the wheel in spite of a relatively large dierence in the diameter of the rim and the co-operating rim seats.

ll/Vhile I have shown each rim as being provided with but two ball members 21, it will be obvious that any number may be supplied on each rim that is found necessary or desirable. lt will also be apparent that the particular ball member 21 shown is merely one form of a means that may be formed on a rim for co-operation with a wrench of this type, and that this member may be modified to take a number of various forms of construction without affecting the broad invention involved. n Y

hese and other formal changes may be made in the specific embodiment of the invention describedA without departing from the spirit and substance of the broad invention,

the scope of which is commensurate with the appended claims. Y

V'Jhat l claim is:

1. A rim wrench comprising a shank and an integral head thereon, said head having two opposite surfaces extending in the vsame plane and common with two opposite surfaces. of the shank, said head projecting transversely of said shank on both sides thereof between said two opposite surfaces forming two transverse projections, a pin, whereby the wrench 'pivots on said wheel, on each of said opposite surfaces of one of said projections, said pins extending vperpendicularly to said surfaces, the other of said projections having a slot therein extending in a direction perpendicular to the longitudinal axis of said shank.

2. A rim wrench for a felloeless wheel comprising a shank and an integral head thereon, said head having two opposite flat surfaces extendinfT in the same plane and.

common'with two opposite surfaces Yof the shank, said head projecting transverselyy of said shank on both sides thereof between said two opposite surfaces forming two transverse projections, a cylindrical pin, whereby the wrench pivots on said wheel, on each Aof said opposite surfaces of one of said projections, said pins extending perpendicularly to said surfaces, the other of said projections having a slot therein extending vin a` direction perpendicular to the longitudinal axis of `said shank. i

3. A rim wrench for use with a felloeless wheel and rim therefor comprising a shank and an integral head thereon, said head having two opposite flat surfaces extending in the same plane and common with two opposite surfaces of the shank, said head projecting transversely of said shank on both sides thereof between said two opposite surfaces forming two transverse projections, a cylindrical pivot pin, whereby the wrench pivots on said wheel, on each of said opposite surfaces of one of said projections, said pins extending perpendicularly to said surfaces, thepother of said projections having a slot therein, the

plane of symmetry of said slot extending in a.

direction perpendicular to the longitudinal axis of said shank and containing the axis of said pins, whereby the rim is held firmly by the slot as it is moved from the felloeless wheel. 1 Y i Y 4i. A rim wrench having in combination a T-shapedbody, the leg of the T comprisinga shank, one arm of the head of the T comprising a lug engaging portion having a longitudinal slot therein, and a recess engaging portion comprising a perpendicular pivot pin on the surface of the other arm of theV head of the T. Y

5. A T-shaped rim wrench having in combination a shank member and twoarm members having common upper and lower surica iis

faces, one of saidv arm members having a medial slot running longitudinally through the common surfaces thereof and a pivot pin extending from the other of said arm members perpendicular to the common surface thereof. i

6. A rim Wrench having in -combination a T-shaped body, the leg of the T comprising a shank, one arm of the head of the T comprising a lug engaging portion having a longitudinal slot therein, and a recess engaging portion comprising a perpendicular pivot pin on the surface of the other arm of the head of the T, the axis of said pin, and the longitudinal axis of said shank being substantially perpendicular to and spaced from each other, the longitudinal axis of said slot intersecting both the axis of said shank and said pin and being substantially perpendicular to both said axes.

7 A T-shaped rim Wrench having in combination a: shank member and two arm members having common upper and lower surfaces, one of said arm members having a z5 medial slot running longitudinally through the common surfaces thereof and a pivot pin extending from the other of said arm members perpendicular to the common surface thereof, .the axis of said pin, and the longitudinal axis of said shank being substantially perpendicular to and spaced from each other, the longitudinal axis of said slotintersecting both the axis of said shank and said pin and being substantially perpendicular to both said l axes.

8. A rim Wrench for a demountable rim Wheel comprising a shank and a head, said head comprising a yoke and a pivot pin arranged in substantial alignment transversely of the length of said shank, said yoke adapted for engagement with a projection on said rim and said pin adapted for pivotal reception in an opening in said Wheel.

EMIL A. NELSON. 

